if they copied the pet ui from wow hunter I would say yes please!! If they keep current pet ui then {no thanks}.

Wow did a perfect job offering a very strong pet heal (unlike smn) EXCELLENT pet hate generation/tanking options (which titan is a complete flop, I can pull off him easily in current content ....any content...and I take hits better then he does lol)

Also when a pet died in wow they were capable of grabbing FULL hate again immediately which of course ffxiv fails at too. And if by rare chance you did generate too much hate , an ability to transfer all hate to pet...which.....ffxiv lacks as well.

I would LOVE a bst dont get me wrong, was one of my mains in ffxi oh yes!!! But only if its not clunky and slow like ffxi, with terrible, weak spells/abilities like ffxiv.